Finding the Fourth Proportional to 74,729.80, 103,123.98 and 40,737.56

Step by Step Solution

1. Step 1: Write the proportion equation
   74,729.80 : 103,123.98 = 40,737.56 : x
2. Step 2: Convert to fraction form
   74,729.80/103,123.98 = 40,737.56/x
3. Step 3: Cross multiply
   74,729.80x = 103,123.98 × 40,737.56
4. Step 4: Simplify right side
   74,729.80x = 4,201,019,322.69
5. Step 5: Solve for x
   x = 4,201,019,322.69/74,729.80
6. Step 6: Final answer
   x = 56,216.12